TEST ONLY - Official: Courthouse shooter was ex-father-in-law

WILMINGTON, Del. (AP) -- The gunman in a Delaware courthouse shooting that left three dead was the ex-father-in-law of one of the victims, a law enforcement official said Tuesday.

The official, who had been briefed on the situation, spoke on the condition of anonymity because the official was not authorized to release the gunman's identity while the investigation was continuing. The official identified the shooter as 68-year-old Thomas Matusiewicz of Edcouch, Texas.

Matusiewicz was the former father-in-law of Christine Belford, 39, who police said was fatally shot Monday along with neighbor Laura Mulford, 47. Matusiewicz, armed with a .45 caliber semiautomatic handgun, exchanged gunfire with police and also died.